Note 3 battery dying since getting phone activated

[Android Central Question]

I have an old Note 3 that I've been using for years as essentially a home tablet on wifi. Recently got it activated to use as a phone and the batter dies quickly now, even on power saver mode. Mostly at night and the issues seem to be... Android OS, Android System, Google Services, Screen, com.android.systemui.... Usually Google services isn't on there, but it dies at night more than during the day. I listen to music on it all day long at work and it typically lasts all day, but sit it idle at night with 100% charge and it dies within 4 or 5 hours. Any help would be appreciated. This morning it died and my alarm didn't wake me so I overslept 3 hours lol, luckily it's Labor day. I thought I had solved the issue with power saver, but nope.

 

[B. Diddy]

Welcome to Android Central! What's the cell signal like? If it's poor, that can drain the battery fairly quickly.